Antifriction-bearing.



J. DOVE-SMITH & F. BLAUBR.

AN-TIFRIGTI-ON BEARING. APPLIoATIoN P ILBD 00124, 190e.

' No. 854.877; PATENTBD MAY 2s, 1907. l

UNITED STATES PATENT OFFIOE.

JOSEPH 'DOVE-SMITH, OF TORONTO JUNCTION, AND FRANK EDWARD LAUER, OFNIAGARA FALLS, ONTARIO, CANADA.

ANTIFRICTION-BEARING.

Speccation of Letters Patent.

Patented May 28, 1907.

T0 all whom it may concern:

Be it known that we, JOSEPH DOVE-SMITH, of the town of Toronto Junction,in the county of York and Province of Ontario, Dominion of Canada, andFRANK EDWARD LAUER, of the city of Niagara Falls, in the county ofWelland and said Province of Ontario, have invented certain new anduseful Improvements in Antifriction-Bearings; and we hereby declare thatthe following is a full, clear, and exact description of the same.

This invention relates to an anti friction bearing capable of use as anend, thrust or l foot-step, bearing for any kind of shafting or axle,and it consists essentially of a series of load-bearing rollers, eachhaving two conical bearing surfaces tapering from the middle of itsperipheral surface toward the ends thereof, a series of spacing rollers,intermediate the load-bearing rollers, each having its ends tapered tocorrespond with the taper of the conical surfaces of the load-bearingrollers and a V-shaped groove extending from the inner edges of itstapered ends to the median line of its peripheral surface with the apexof the V-shaped groove alined with the apex of the conical surface ofthe adjacent load-bearing roller, a retaining ring at each end of theload-bearing and spacing rollers and fastening bolts locking theretaining rings together, as hereinafter more fully set forth and moreparticularly pointed out in the appended claims.

For a full l*understanding of the invention reference is to be had tothe following description and to the accompanying drawings, in which,

Figure 1 is a plan view, of the anti friction bearing showing theretaining rings, loadbearing and spacing rollers and fastening bolts.-Fig. 1EL is a plan view of a modification of the construction shown inFig. 1. Figs. 2 and 2a are side elevations, partly in section of theanti-friction bearing shown in Figs. 1 and 1a. Fig. 3 is a verticalsection through the anti-friction bearing, shown in Fig. 1., combinedwith a shaft or axle and the load-resisting element. Fig. 3a is asectional view of the construction shown in Fig. 1a. Fig. 4 is a detailview of one ofthe load-bearing rollers shown in Fig. 2. Fig. la is adetail view of one of the load-bearing rollers shown in Fig. 2a.` one ofthe spacing rollers.

Fig. 5 is a detail view of Like letters of reference refer to like partsthroughout the specification and drawings.

- The anti friction bearing shown in the accompanying drawings isparticularly designed for end,-thrust, and foot step bearing purposesand may be described as consisting essentially of a series of loadbearing rollers a, a series of spacing rollers b, intermediate the loadbearing rollers, a retaining ring c at each end of the load bearing andspacing rollers and fastening bolts d securely locking the retainingrings together.

The peripheral surface of each load bearing roller a has the shape oftwo cones a',

a, tapering from the middle of its peripheral l surface toward .the endsthereof at an angle preferably of forty-five (45) degrees to contactrespectively the correspondingly shaped surface e of the shaft f and thecorrespondingly shaped contacting surface g of the load resistingelement h with which the load bearing rollers co-act in the performanceof their functions.

As shown in the drawings the load bearing rollers a are separated byintervening spaces in which are located the spacing rollers b, the endsb of which are tapered to correspond with the taper of the conicalsurfaces a, a of the load bearing rollers a, and extending from theinner edges of the tapered ends b to the median lines of the peripheralsurfaces are V-shaped grooves i, the angularity or slope of the faces ofwhich corresponds to that of the conical faces of the load bearingrollers. Located at the ends of the load bearing and spacing rollers,are retaining rings c tied together by fastening bolts d. A

As shown in Figs. 2 and 3, the apices o of the cone shaped ends of theload bearing rollers are journaled in conical seats c in the retainingrings, and lthe fastening bolts d are passed through the central boresy' of the spacing rollers and through the retaining rlngs, to which theyare secured preferably by nuts or rivets heads d to securely hold theload bearing and spacing rollers in their assembled condition, but asshown in Figs. 2a and 3*", the load bearing and spacing rollers arecentrally bored and the fastening bolts are passed through their centralbores and through the retaining rings.

When the anti friction bearing is operatively employed the cone surfacesa of the IOO load bearing rollers a engage with the cone surface e ofthe shaft f and the cone surfaces a of the load bearing rollers engagewith the correspondingly tapered cone surface g of the load resistingelement t. The cone surfaces a constitute the bearing for the end of theshaft f and provide it with an anti friction raceWay during itsrevolution and the load resisting element 7i maintains the load bearingrollers positioned against the contacting surface of the shaft f,sustains the load thereon and receives the impact caused by the endthrust of the shaft.

By the employment of the spacing rollers and their contact with the loadbearing rollers, the displacement of the latter under the influence ofthe load is not only resisted, but an excess of load on one of the loadbearing rollers can be evenly distributed to the adjoining rollers.

The tapered ends of the spacing rollers do not engage the lcontactingsurface of the shaft or the load resisting element and consequently arenot influenced either by the load imposed on the load bearing rollers orthe thrust against the load resisting element and are constantly free toperform their function of maintaining the load-bearing rollers evenlyspaced.

The conical bearing surfaces of the shaft and resisting element, contactthe load bearing rollers at diametrically opposite and parallel placeson opposite sides of the midelle of the peripheral surfaces of the loadbearing rollers to equalize the strains on the opposite sides of their.longitudinal axes, so that they Will constantly revolve in fixed planes,Without straining the parts of the anti friction bearing or increasingthe friction thereof.

Having thus fully described our invention what We claim as new anddesire to secure by Letters Patent is:

1. An anti friction bearing for end, thrust and step bearing purposes,comprising a series of load bearing rollers each having two conicalbearing surfaces tapering from the middle of its peripheral surfacetoward the ends thereof, a series of spacing rollers intermediate theload bearing rollers, each having its ends tapered to correspond withthe taper of the conical surfaces of the load bearing rollers, andhaving a V-shaped groove extending from the inner edges of the taperedends to the median line of its peripheral surface with the apex of theV-shaped groove alined With the apex of the conical surface of theadjacent load bearing roller, a retaining ring at each end of the loadbearing and spacing rollers and fastening bolts locking the retainingrings together to hold the load bearing and spacing rollers in theirassembled condition.

2. An anti friction bearing for end, thrust and step-bearing purposes,comprising a series of load bearing rollers each having two conicalbarring surfaces tapering from the middle of its peripheral surfacetoward the ends theieof, a series of spacing rollers intermediate theload bearing rollers, ach having its ends tapered to correspond with thetaper of the conical surfaces of the load l airing rollers and having aV-shaped groove extending from the inner edges of the tapered emls tothe median line of its peripheral surface with the apex of the V-shapedgroove alined with the apex of the conical surface of the adjacent loadbearing roller, a retaining ring at each end of the load bearing andspacing rollers and fastening bolts passing through the retaining ringsand centrally through their respective load bearing and spacing rollers.

3. An anti friction bearing for end, thrust and step bearing purposes,comprising a series of load bearing rollers each having two conicalbearing surfaces tapering from the middle of its peripheral surfacetoward the ends thereof, a series of spacing rollers ini ermediate theload bearing rollers, each having its ends tapered to correspond with.the taper of the conical surfaces of the load bearing rollers, andhaving a V-shaped groove extending from the inner edges of the taperedends to the median line of its peripheral surface with the apex of theV-shaped groove alined with the apex of the conical surface of theadjacent load bearing roller, a retaining ring at each end of the loadbearing and spacing rollers and fastening bolts locking the retainingrings together to hold the load bearing and spacing rollers in theirassembled condition, in combination with a shaft harving a conicalbearing surface contacting the conical bearing surfaces at one side ofthe middle of the load-bearing rollers, and tapered to correspond withthe taper thereof' and a load resisting element having a conical bearingsurface contacting the conical bearing surfaces, at the other side ofthe middle of the load bearing rollers, at a place dialnet ricallyopposite and parallel to the place. of contact of the conical bearingsurface of the shaft.

4. An anti friction b aaring for end, thrust and step bearing purposes,comprising a series of load bearing rollers each having two conicalbearing surfaces tapering from the middle of its peripheral surfacetoward the ends thereof, a series of spacing rollers infermediate theload bearing rollers, each having its ends tapered to correspond withthe taper of the conical surfaces of the load l `.a'l'ing rollers andhaving a V-shaped groove extending from the inner edges of the taperedends to the median line of its peripheral surface With the apex of theV-saaped groove alined with the apex of the conical surface of theadjacent load bearing roller, a retaining ring at each end of the loadbearing and spacing IOO rollers and fastening bolts passing throughfaces at the other side of the middle7 of the the retaining rings andcentrally through load bearing rollers at a plane diametrically theirrespective load bearing and spacing opposite and parallel to the placeof contact rollers, in combination with a shaft having a of the conicalbearing surface ofthe shaft.

5 conical bearing surface contacting the con* Toronto7 October 5th A. D.1906.

ical bearing surfaces at one Side ofthe middle JOSEPH DOVE-SMITH. of theload bearing rollers, and tapered to i FRANK EDWARD LAUER. correspondwith the taper thereof, and a load Signed in the presence ofresistingelement having a conical bearing H. L. TRIMBLE,

10 surface contacting the conical bearing sur- O. A. BATEMAN.

